I am trying to adapt the below Applescript code to change the audio channel assignment of a multichannel Quicktime file consisting of video and 8 audio channels from the default 'Mono' to 'Left, Right, Front Left, Front Right, LFE', etc, which can be done manually from 'Show Movie Properties/Audio Settings. The below script successfully changes the audio channels 'name' but I want it to change the 'channels' assignment, but I can't figure out how to get it working. I am on Mavericks with Quicktime Pro 7.
on run
open (choose file with prompt "Choose source file(s)" with multiple selections allowed)
end run
on open ff
repeat with f in ff
remap_sound_tracks_name(f's POSIX path)
end repeat
end open
on remap_sound_tracks_name(f)
(*
string f : POSIX path of source movie file
*)
script o
on map(n)
set mm to {¬
{"Sound Track 1", "Left"}, ¬
{"Sound Track 2", "Right"}, ¬
{"Sound Track 3", "Center"}, ¬
{"Sound Track 4", "LFE Screen"}, ¬
{"Sound Track 5", "Left Surround"}, ¬
{"Sound Track 6", "Right Surround"}, ¬
{"Sound Track 7", "Left Total"}, ¬
{"Sound Track 8", "Right Total"} ¬
}
repeat with m in mm
if m's item 1 = n then return m's item 2
end repeat
return n
end map
set f to f as POSIX file
tell application id "com.apple.quicktimeplayer" -- QuickTime Player 7
set dc to count documents
open f
repeat until (count documents) > dc
delay 0.2
end repeat
tell document 1
repeat with t in (get tracks whose audio channel count > 0)
set t to t's contents
set n to t's name
set n1 to my map(n)
if n1 ≠ n then set t's name to n1
end repeat
if modified then save
close
end tell
end tell
end script
tell o to run
end remap_sound_tracks_name
This was answered by Hiroto on the apple forums. It runs and works, but is quite slow:
(*
remap audio channel layouts.applescript
v0.1
*)
on run
open (choose file with prompt ("Choose movie file(s)") ¬
with multiple selections allowed)
end run
on open aa
set channel_layouts_map1 to {¬
{"Sound Track 1", "Sound Track 1", {"Left"}}, ¬
{"Sound Track 2", "Sound Track 2", {"Right"}}, ¬
{"Sound Track 3", "Sound Track 3", {"Center"}}, ¬
{"Sound Track 4", "Sound Track 4", {"LFE Screen"}}, ¬
{"Sound Track 5", "Sound Track 5", {"Left Surround"}}, ¬
{"Sound Track 6", "Sound Track 6", {"Right Surround"}}, ¬
{"Sound Track 7", "Sound Track 7", {"Left Total"}}, ¬
{"Sound Track 8", "Sound Track 8", {"Right Total"}} ¬
}
set channel_layouts_map2 to {¬
{"Sound Track 1", "Sound Track 1", {"Left"}}, ¬
{"Sound Track 2", "Sound Track 2", {"Right"}}, ¬
{"Sound Track 3", "Sound Track 3", {"Center"}}, ¬
{"Sound Track 4", "Sound Track 4", {"LFE Screen"}}, ¬
{"Sound Track 5", "Sound Track 5", {"Left Surround"}}, ¬
{"Sound Track 6", "Sound Track 6", {"Right Surround"}}, ¬
{"Sound Track 7", "Sound Track 7", {"Left Total", "Right Total"}} ¬
}
set channel_layouts_map3 to {¬
{"Sound Track 1", "Sound Track 7", {"Left"}}, ¬
{"Sound Track 2", "Sound Track 8", {"Right"}} ¬
}
set channel_layouts_map4 to {¬
{"Sound Track", "Sound Track", {"Left", "Right"}} ¬
}
repeat with a in aa
set f to a's POSIX path
set k to count_sound_tracks(f, {_close:false})
if k = 8 then
remap_audio_channels(f, channel_layouts_map1)
else if k = 7 then
remap_audio_channels(f, channel_layouts_map2)
else if k = 2 then
remap_audio_channels(f, channel_layouts_map3)
else if k = 1 then
remap_audio_channels(f, channel_layouts_map4)
else
-- ignore it (just close it)
close_document(f, {_save:false})
end if
end repeat
end open
on count_sound_tracks(f, {_close:_close})
(*
string f : POSIX path of QT movie
boolean _close: true to close document, false othewise
*)
tell application id "com.apple.quicktimeplayer" -- QuickTime Player 7 Pro
open (f as POSIX file)
tell (document 1 whose path = f)
repeat until exists
delay 0.2
end repeat
set k to count (tracks whose audio channel count > 0)
if _close then close
end tell
end tell
return k
end count_sound_tracks
on close_document(f, {_save:_save})
(*
string f : POSIX path of QT movie
boolean _save: true to save document (if modified), false othewise
*)
tell application id "com.apple.quicktimeplayer" -- QuickTime Player 7 Pro
tell (document 1 whose path = f)
if exists then
if _save and modified then save
close
end if
end tell
end tell
end close_document
on remap_audio_channels(f, channel_layouts_map)
(*
string f : POSIX path of source movie
list channel_layouts_map : list of {trk, trk_new, layouts}
trk = (string or integer) name or index of source sound track
trk_new = (string or integer) new name for source track (integer i denotes original name of sound track i)
layouts = list of audio channel layout for channel(s) in source sound track
Mono
Left
Right
Center
LFE Screen
Left Surround
Right Surround
Left Center
Right Center
Center Surround
Rear Surround Left
Rear Surround Right
Left Total
Right Total
Discrete-0
Discrete-1
Unused
e.g. 1
{{"Sound Track 1", "Left", {"Left"}}, ¬
{"Sound Track 2", "Right", {"Right"}}, ¬
{"Sound Track 3", "Center", {"Center"}}, ¬
{"Sound Track 4", "LFE Screen", {"LFE Screen"}}, ¬
{"Sound Track 5", "Left Surround", {"Left Surround"}}, ¬
{"Sound Track 6", "Right Surround", {"Right Surround"}}, ¬
{"Sound Track 7", "Left Total", {"Left Total"}}, ¬
{"Sound Track 8", "Right Total", {"Right Total"}}}
e.g. 2
{{1, 1, {"Left", "Right"}}, ¬
{2, 2, {"Center", "LFE, Screen"}}, ¬
{3, 3, {"Left Surround", "Right Surround"}}, ¬
{4, 4, {"Left Total", "Right Total"}}}
* this handler behaves as follows:
1) open f
2) scan sound tracks of document 1 for each trk and remap the track's audio channel layouts as specified
3) scan sound tracks of document 1 for each trk and rename the track as specified
4) save and close document 1
* if specified trk is not found, it is ignored and no remapping is performed on the track.
* if specified layout is not found, it is ignored and no remapping is performed on the layout.
* if specified layout count is greater than channel count of the target track, excessive layouts are ignored.
* if specified layout count is smaller than channel count of target track, excessive channels are ignored.
* if trk and trk_new denotes the same track, renaming is not performed on the track.
*)
script o
property map : channel_layouts_map
property pp : {}
property qq : {}
-- get name and id of sound tracks
tell application id "com.apple.quicktimeplayer" -- QuickTime Player 7 Pro
activate
open (f as POSIX file)
tell (document 1 whose path = f)
repeat until exists
delay 0.2
end repeat
tell (tracks whose audio channel count > 0)
set {pp, qq} to {name, id} -- name and id of sound tracks
end tell
end tell
end tell
-- remap audio channel layouts as specified
tell application "System Events"
tell (process 1 whose bundle identifier = "com.apple.quicktimeplayer")
-- open movie properties window
keystroke "j" using {command down}
tell (window 1 whose subrole = "AXDialog") -- properties for movie
repeat until exists
delay 0.2
end repeat
repeat with m in my map
set {trk, undef, layouts} to m
-- [TRK:
repeat 1 times
if trk's class = integer then
if trk < 1 or trk > (count my pp) then exit repeat -- TRK:
set trk to my pp's item trk
end if
tell scroll area 1
tell table 1
tell (row 1 whose text field 1's value = trk) -- target sound track whose name = trk
if not (exists) then exit repeat -- TRK:
select
end tell
end tell
end tell
tell tab group 1
click radio button 3 -- audio settings
tell scroll area 1
tell table 1 -- channel assignment table
set ix to count layouts
repeat with i from 1 to count rows
if i > ix then exit repeat
tell row i -- channel i
tell pop up button 1
click
tell menu 1 -- channel assignment menu
tell (menu item 1 whose title = layouts's item i)
if exists then click
end tell
end tell
end tell
end tell
end repeat
end tell
end tell
end tell
end repeat
-- /TRK:]
end repeat
-- close movie properties window
click (button 1 whose subrole = "AXCloseButton")
end tell
end tell
end tell
-- rename sound tracks as specified
tell application id "com.apple.quicktimeplayer"
tell document 1
repeat with m in my map
-- [RENAME:
repeat 1 times
set {x, y} to m's items 1 thru 2 -- {old name or index, new name or index}
if x's class = integer then
if x < 1 or x > (count my pp) then exit repeat -- RENAME:
else
set x to my _index_of(pp, x)
if x = 0 then exit repeat -- RENAME:
end if
if y's class = integer then
if y < 1 or y > (count my pp) then exit repeat -- RENAME:
set y to my pp's item y
end if
set p to my pp's item x
set q to my qq's item x
if p ≠ y then set track id q's name to y
end repeat
-- /RENAME:]
end repeat
if modified then save
close
end tell
end tell
end script
tell o to run
end remap_audio_channels
on _index_of(xx, x) -- renamed _bsearch() v0.1
(*
list xx : source list
anything x : item to be searched in xx
return integer : the first index of x in xx if {x} is in xx, or 0 if not.
*)
script o
property aa : xx
local i, j, k
if {x} is not in my aa then return 0
set i to 1
set j to count my aa
repeat while j > i
set k to (i + j) div 2
if {x} is in my aa's items i thru k then
set j to k
else
set i to k + 1
end if
end repeat
return i
end script
tell o to run
end _index_of